diff --git a/call-booking-application/user-api/Dockerfile b/call-booking-application/user-api/Dockerfile
index 9b2e8b0..a13135c 100644
--- a/call-booking-application/user-api/Dockerfile
+++ b/call-booking-application/user-api/Dockerfile
@@ -1,11 +1,27 @@
 FROM node:17.9.0-slim
-LABEL maintainer="DeekshithSN"
+
+LABEL maintainer="mellitus okoro"
+
 RUN useradd userapi
-WORKDIR /app
-COPY . .
-RUN npm install 
+
+WORKDIR /sr/src/app
+
+COPY . . 
+
+RUN npm install
+
+RUN --mount=type=bind,source=package.json,target=package.json \
+    --mount=type=bind,source=package-lock.json,target=package-lock.json \
+    --mount=type=cache,target=/root/.npm \
+    npm ci --omit=dev
+
 EXPOSE 1004
+
 USER userapi
+
 ENV MONGO_URL=""
-ENV ADMIN_EMAIL=""
-CMD ["npm","start"]
\ No newline at end of file
+
+ENV ADMIN_EMAI=""
+
+CMD [ "npm","start" ]
+
diff --git a/call-booking-application/user-api/utils/mail.js b/call-booking-application/user-api/utils/mail.js
index e558c8a..fd9d653 100644
--- a/call-booking-application/user-api/utils/mail.js
+++ b/call-booking-application/user-api/utils/mail.js
@@ -7,14 +7,14 @@ exports.sendMail = async (to="bar@example.com", name="User Name", forRole="user"
     port: 587,
     secure: false, // true for 465, false for other ports
     auth: {
-      user: 'admin@deekshithsn.live ', // generated ethereal user
+      user: 'okoromellitus@gmail.com ', // generated ethereal user
       pass: '****', // generated ethereal password
     },
   });
 
   // send mail with defined transport object
   let info = await transporter.sendMail({
-    from: '"Admin" <admin@deekshithsn.live>', // sender address
+    from: '"Admin" <admin@okoromellitus@gmail.com>', // sender address
     to, // list of receivers
     subject: "Booking Confirmation ✔", // Subject line
     text: "Your booking is confirmed. Somebody from the team contact you soon.", // plain text body
diff --git a/call-booking-application/user-ui/Dockerfile b/call-booking-application/user-ui/Dockerfile
index b2f1bc8..ed557b9 100644
--- a/call-booking-application/user-ui/Dockerfile
+++ b/call-booking-application/user-ui/Dockerfile
@@ -1,9 +1,22 @@
 FROM node:17.9.0-slim
-LABEL maintainer="DeekshithSN"
+
+LABEL maintainer="mellitus okoro"
+
 RUN useradd userui
-WORKDIR /app
-COPY . .
-RUN npm install 
+
+WORKDIR /sr/src/app
+
+COPY . . 
+
+RUN npm install
+
+RUN --mount=type=bind,source=package.json,target=package.json \
+    --mount=type=bind,source=package-lock.json,target=package-lock.json \
+    --mount=type=cache,target=/root/.npm \
+    npm ci --omit=dev
+
 EXPOSE 3000
-USER userui
-CMD ["npm","start"]
\ No newline at end of file
+
+USER userapi
+
+CMD [ "npm","start" ]